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stevenestrada's avatar
stevenestrada
Aspirant
Dec 10, 2017
Solved

Bigger RAID1

rn314 + os 6.9.1 + 4tb drives in two raid1 Is increasing raid1 easy as pulling a disk, putting in a bigger one, let it rebuild, then do the other? if not can you share the steps?
Installation & Upgrade
  • StephenB's avatar
    StephenB
    Dec 12, 2017
    stevenestrada wrote:

     

    I was figuring the new 6tb woukd rightsize iself to 4tb, and over and over and over.

     

    So that's not the case?

     

    When you upgrade the first 4 TB drive to 6 TB, the NAS will resync that drive.  The volume size will be the same as it is now - the extra space is wasted.

     

    After the resync completes, you upgrade the second drive to 6 TB.  First the drive will sync.  After a reboot, the system will create a new 2 TB RAID group to fully use the drive capacities.  That new RAID group will be added to your existing volume (so you will just see an increase from 4 to 6 TB).

     

    But if you simply added the two 6 TB drives to the RN314 (2x4TB+2x6TB) you'd have gotten a 14 TB volume.  If the 4 TB drives are healthy, you might consider that.

     

    FWIW, Sandshark missed that you were planning to upgrade both drives.

     

     

stevenestrada's avatar
stevenestrada
Aspirant
Dec 10, 2017

 

I was figuring the new 6tb woukd rightsize iself to 4tb, and over and over and over.

 

So that's not the case?

 

 

 

 

StephenB's avatar
StephenB
Guru - Experienced User
Dec 12, 2017
stevenestrada wrote:

 

I was figuring the new 6tb woukd rightsize iself to 4tb, and over and over and over.

 

So that's not the case?

 

When you upgrade the first 4 TB drive to 6 TB, the NAS will resync that drive.  The volume size will be the same as it is now - the extra space is wasted.

 

After the resync completes, you upgrade the second drive to 6 TB.  First the drive will sync.  After a reboot, the system will create a new 2 TB RAID group to fully use the drive capacities.  That new RAID group will be added to your existing volume (so you will just see an increase from 4 to 6 TB).

 

But if you simply added the two 6 TB drives to the RN314 (2x4TB+2x6TB) you'd have gotten a 14 TB volume.  If the 4 TB drives are healthy, you might consider that.

 

FWIW, Sandshark missed that you were planning to upgrade both drives.

 

 

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